[Mac_crypto] Introducing SaferWep

[R. A. Hettinga]

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Status:  U
From: James Moore <jam at wirerimmed.com>
To: mac_crypto at vmeng.com
Subject: [Mac_crypto] Introducing SaferWep
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Date: Thu, 28 Aug 2003 21:01:30 -0700

I've put together a package [1] that could help improve the security on 
WiFi networks which use the Apple AirPort Base Station. SaferWep makes 
it easy to rotate the base station password periodically with the new 
password being a SHA1 hash of the date and a shared secret. The idea is 
to rotate the WEP key faster than someone can crack it. SaferWep 
includes the software to do this as well as a "client" which will 
display the current WEP key. SaferWep is written in Java.

There is more detailed information in the package's readme file 
including it's weaknesses as I see them. I'd really appreciate feedback 
and/or criticism especially if I've missed something obvious about this 
approach.

SaferWep is based on the excellent AirPort Base Station Configurator 
[2].

[1] http://wirerimmed.com/saferwep
[2] http://edge.mcs.drexel.edu/GICL/people/sevy/airport/

-James


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-- 
-----------------
R. A. Hettinga <mailto: rah at ibuc.com>
The Internet Bearer Underwriting Corporation <http://www.ibuc.com/>
44 Farquhar Street, Boston, MA 02131 USA
"... however it may deserve respect for its usefulness and antiquity,
[predicting the end of the world] has not been found agreeable to
experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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